/**
 * ISubject.java is created by Zachariah at 2012-2-14 下午05:22:18
 */
package com.zack.designPattern.observer;

/**
 * @author zachariah zzcfrog@gmail.com
 *
 */
public interface ISubject {

	public void addObserver(IObserver o);
	
	public void delObserver(IObserver o);
	
	public void notifyAllObservers();
}
